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This screenshot is meant to be from an unmodified official cgminer isn't it?
That is the claim.
I went back and checked out version 4.6.0 which is in the screenshot there to make sure.
It appears whoever modified the display to show a fake hashrate was not aware of the intimate link between the hashrate and the work utility. There is no way the official cgminer 4.6.0 would show that hashrate and that WU at the same time. This is a doctored output and it is as MrTeal says. The devices are only doing 610GH max each.
Hashcoins you have some answering to do.
Thanks Con. I realized on the road and you answered before I could edit, but they claimed it was the stock hashfast driver, not cgminer. Since hashrate is calculated in cgminer.c and not driver-hashfast.c, I suppose they could have been using a stock hf driver but modded cgminer and not technically been lying.
Except on their product specs, of course.